A Novel Sustained Limus Release Eluting Balloon: 2-Year Data from the SELUTION SFA Trial
Universitaets-Herzzentrum Freiburg Bad Krozingen, Germany Thomas Zeller, MD
A Novel Sustained Limus Release Eluting Balloon: 2-Year Data from - - PowerPoint PPT Presentation
A Novel Sustained Limus Release Eluting Balloon: 2-Year Data from the SELUTION SFA Trial Thomas Zeller, MD Universitaets-Herzzentrum Freiburg Bad Krozingen, Germany DISCLOSURE STATEMENT OF FINANCIAL INTEREST Thomas Zeller, MD For the 12
A Novel Sustained Limus Release Eluting Balloon: 2-Year Data from the SELUTION SFA Trial
Universitaets-Herzzentrum Freiburg Bad Krozingen, Germany Thomas Zeller, MD
Thomas Zeller
DISCLOSURE STATEMENT OF FINANCIAL INTEREST
Thomas Zeller, MD
For the 12 months preceding this presentation, I disclose the following types of financial relationships:
Boston Scientific Corp., Cook Medical, Gore & Associates, Medtronic, Philips-Spectranetics, TriReme, Veryan, Shockwave
Associates, Medtronic, Spectranetics, Veryan, Intact Vascular, MedAlliance, Vesper Medical
Thomas Zeller
▶Novel angioplasty balloon coated with an anti-restenotic drug ▶Overcoming unmet clinical need:
▶Homogenous delivery of anti-restenotic drug reduces amount of
restenosis
▶Due to absence of any stent no stent fracture or vessel injury ▶Allows original anatomy to remain intact Positive remodeling ▶“Leaving nothing behind” allowing fast ‘normalization’ of vascular
function
▶True normalization of vasomotor function, ▶Restoration of physiological responses to stress ▶NO long-term consequences related to inflammation,
accelerated atherosclerosis and thrombosis
▶No need for long term DAPT
Thomas Zeller
Source: Oral presentation TCT 2016, P. Stella.
LIMUS PACLITAXEL
Mode of action Margin of safety Anti-restenosis Tissue absorption And elution Level of competition Physician perception
ATTRIBUTE
Cytotoxic 100 fold Good More difficult Very high Controversial Cytostatic 10,000 fold Optimal Easier Low Positive
Thomas Zeller
Tissue Binding Capacity (TBC) of labeled Dextran, Paclitaxel and Sirolimus in 0.040-mm-thick bovine internal carotid tissue segments. Source: PNAS 2004:101(25); 9463–67
PACLITAXEL SIROLIMUS
Drug Plaque Balloon Media
Intima
Adventitia
Sirolimus Paclitaxel
Dextran
►
Absorbs quickly and tends to localize in sub-intimal space and partitions significantly in adventitia
►
Absorbs slowly and spreads throughout entire artery where it dilutes down to sub-therapeutic levels
Thomas Zeller
Sirolimus-Eluting Balloon with Sustained Release
Proprietary Micro-reservoir Technology
Micro-reservoirs: Miniature Drug-Delivery Systems
Cell Adherent Technology (CAT™)
Proprietary amphiphatic lipid technology binds micro-reservoirs to balloon surface
*Device not approved and available for sale in the US
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6 262 44 21 19
59 1 0.3 35 11 3
50 100 150 200 250 300 1 hour 7 days 28 days 60 days
Tissue Drug Concentration [ug/g] Med Alliance SELUTION - RAP Bard LUTONIX - PAX Medtronic IN.PACT - PAX
Therapeutic Effect ≥ 1 µg/g
0.5
2.8 1.0 5.7 1.8 9.9 2 4 6 8 10 12 4.0x40 6.0x150 Drug Dose [mg]
Med Alliance SELUTION - 1.0 μg/mm2 Bard LUTONIX - 2.0 μg/mm2 Medtronic IN.PACT - 3.5 μg/mm2
Arterial Tissue Drug Concentration Sirolimus (RAP) versus Paclitaxel (PAX) Drug Dose per Balloon Size En Face Scanning Electron Microscope at 24 hours
SEM Courtesy of Renu Virmani
Source: Med Alliance – Pharmacokinetics Study (2014-004) – Medtronic – Presentation R.J. Melder (LINC 2012) – Bard – Catheterization and Cardiovascular Interventions 83:132–140 (2014)
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Drug Transfer
Source: Med Alliance – Bench Test Data on File Bard-LUTONIX & Medtronic-IN.PACT – Presentation Granada at CRT 2014.
Med Alliance SELUTION Bard LUTONIX Medtronic IN.PACT Lost during procedure 36% 83% 83% Retained on balloon 25% 12% 14% Transferred to vessel (1 hr) 39% 5% 3%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
% of Total Device Drug Load
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► Coating Durability during handling and deployment
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To assess the safety and efficacy of the SELUTION SLR DEB in treatment
and/or PA, assessed at multiple time points clinical, angiographic and/or ultrasound assessment ▶ Prospective, controlled, multi-center, open, single-arm clinical investigation ▶ 50 patients ▶ Angiographic Late Lumen Loss (LLL) by QVA – 6M ▶ Major adverse Events (Death, Thrombosis, Amputation, CD-TLR) 6M ▶ Primary Patency – Freedom from CD-TLR and absence of Restenosis by DUS - 6, 12 and 24M ▶ Angiographic Binary Restenosis (ABR) by QVA – 6M ▶ Composite of Freedom from Amputation and Freedom from CD- TVR – 12 and 24M ▶ Change of ABI, WIQ and Qol - 6, 12 and 24M OBJECTIVES DESIGN PRIMARY ENDPOINTS SECONDARY ENDPOINTS
ClinicalTrials.gov ID: NCT02941224
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≥ 18 years of age
with composite length ≤ 15 cm
≥ 3.0 mm and ≤ 7.0 mm
maximum of 2 overlapping DCBs
to aspirin, heparin or other anticoagulant / anti-platelet therapies
inflow disease
target vessel
laser, atherectomy, cryoplasty, scoring/cutting balloon, etc.)
KEY INCLUSION CRITERIA KEY EXCLUSION CRITERIA
Thomas Zeller
TRIAL CENTERS
Herzzentrum Bad Krozingen
Franziskus Krankenhaus, Berlin
Vivantes Klinikum Neukoelln, Berlin
Hubertus Krankenhaus, Berlin
Independent CEC committee CRO CORELAB SPONSOR
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* 10 Patient telephone contact only: TLR & Vital status
Enrollment: Oct 26th 2016 – May 23rd 2017
Non-Clinical Inclusion / Exclusion Criteria Screened N=88 Not Eligible N=35 Withdrew Consent Prior to Procedure N=1 Withdrawn by Site N=2 SELUTIONTM DCB N=50 Completed N=43 (86%) DUS Completed N=43 Angio FU Completed N=34 (68%) Bailout Stenting N=4
Withdrew N=2 Missed Visit N=5
Completed N=47* (94%) DUS completed N=37 (74%)
Missed Visit N=1
SCREENING PROCEDURE 6 M FOLLOW-UP 12 M FOLLOW-UP Completed N=42* (84%) DUS completed N=38 (76%)
Lost to FU N= 4
24 M FOLLOW-UP
Withdrew N=2
*4 Patient telephone contact only: TLR & Vital status
Thomas Zeller
SELUTION SFA Trial Baseline Characteristics
CLINICAL CHARACTERISTICS N=50 Age, Y ± SD 69.6 ± 10.4 Male, % (n) 58% (29) Previous Intervention, % (n) 30% (13) Myocardial Infarction, % (n) 6% (3) Renal Insufficiency, % (n) 22% (11) Hypertension, % (n) 80% (40) Hyperlipidemia, % (n) 90% (45) Diabetes (Type 2), % (n) 28% (14) Smoking History, % (n) 58% (29) Anticoagulation Therapy 22% (11) Angina Pectoris 14% (7) LESION CHARACTERISTICS N=50 De Novo 96% (48) Lesion Length, mm ± SD 64.30 ± 42.8 RVD, mm ± SD 5.1 ± 0.8 % Diameter Stenosis, % ± SD 90 ± 8.0 Occlusion 30% (15) Calcification None 12% (6) Mild 44% (22) Moderate 10% (5) Moderately severe 26% (13) Severe 8% (4) Target Lesion Location, % (n) SFA prox 12% (6) SFA mid 34% (17) SFA dist 54% (27) POP 1 24% (12) POP 2/POP 3/TPT 16% (8)
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0,5 1 1,5 2 2,5 3 3,5 5 10 15 20 25 30 35
LLL
0.19 mm*
LLL at 6M (N=34)
*Late Lumen Loss presented as median value
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SELUTION SFA Minimal Lumen Diameter
10 20 30 40 50 60 70 80 90 100 1 2 3 4 5 6
Cumulative density function MLD (mm)
Pre Post Follow-up
Post 3.62 ± 0.71 FU 3.24 ± 1.02 Pre 0.80 ± 0.73
Thomas Zeller
Trial RANGER SFA PACIFIER Tepe et al LEVANT I FemPac BIOLUX-PI
ILLUMENATE
SELUTION Therapy Ranger IN.PACT Pacific DCB not specified Lutonix Ptx coated Passeo-18 Lux Stellarex SELUTION Mean Lesion Length (mm) 6.8 7.0 5.7 8.1 5.7 6.1 7.2 6.4 Bailout Stenting (%) 21% 21% 11% 3% 9% N/A 5% 8%
0.22 0.46 0.50 0.51 0.54 0.19*
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Late Lumen Loss
6% 8% 21% 13% 7% 4% 4% 2.3% 0% 5% 10% 15% 20% 25%
6M TLR
►
Results from different trials are not directly comparable. Information provided for educational purposes.
*LLL Selution presented as median value Ranger SFA – Scheinert, D. CIRSE 2016. – PACIFIER – Werk, M. et al. Circ Cardiovasc Interv. 2012; 5(6):831-840. – Tepe, G. et al. J Endovasc Ther. 2015:727-33. - LEVANT I – Scheinert, D. et al. JACC Cardiovasc Interv. 2014;7(1):10-9. - FemPac – Werk, M. et al. Circulation. 2008;118(13):1358-65 - BIOLUX PI – Scheinert, D. et al. J Endovasc Ther. 2015;22(1):14-21 - ILLUMENATE - Schroeder, H. et al Catheter Cardiovasc Intervent. 2015;86(2):278-86 - SELUTION – Zeller, T. LINC 2018
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ITT: all patients enrolled in the trial, whether or not they were treated the Investigational Device PP: all patients enrolled and treated with the Investigational Device and had no bailout . Includes only patients who had a post-procedure angio residual stenosis ≤ 30%
6M 12M 24M Cumulative Clinical Events Death 0 (0%) 0 (0%) 0 (0%) Minor and Major Amputation 0 (0%) 0 (0%) 0 (0%) Primary Patency (ITT) 88.4% 75.7% 81.6% Primary Patency (PP) 95.2% 88.9% 94.4% Freedom from Index Limb Amputation and CD TVR 97.7% 87.6% 85.4% TLR (ITT) 1 (2.3%) 6 (12.5%) 6 (12.5%) TLR (PP Lesion Prep)1 1 (2.3%) 2 (4.3%) 2 (4.3%) TLR (Ca++)2 0 (0%) 1 (6.6%) 1 (7.7%)
Clinical Results at 6M, 12M and 24M
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Kaplan Meier Estimates
10 20 30 40 50 60 70 80 90 100 100 200 300 400 500 600 700
Freedom from TLR (%) Days post-procedure
87.5 %
360
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P Schneider, LINC 2019, Oral Presentation
All-Cause Death at 2 Years
Thomas Zeller
Adapted from P Schneider, LINC 2019, Oral Presentation
DCB: All-Cause Death at 2 Years
8.1% 6.1% 7.0% 9.5% 7.6% 7.1% 6.5% 8.3% 2.9% 0.0% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0%
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Baseline, 6M, 12 M and 24M Improvement from Baseline to 24M > 2 categories in 67% of patients >1 category in 84% of patients
Thomas Zeller
Change from Baseline to 24M: p 0.0242 Change from Baseline to 12M: p < 0.0001 Change from 6M to 12M: p = 0.0125
Baseline, 6M, 12 M and 24M
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6M and was further improved to 12M and maintained to 24M
Thomas Zeller